#ifndef SVGUseElement_h
#define SVGUseElement_h
#if ENABLE(SVG)
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledTransformableElement.h"
#include "SVGTests.h"
#include "SVGURIReference.h"
namespace WebCore
{
class SVGElementInstance;
class SVGLength;
class SVGUseElement : public SVGStyledTransformableElement,
public SVGTests,
public SVGLangSpace,
public SVGExternalResourcesRequired,
public SVGURIReference
{
public:
SVGUseElement(const QualifiedName&, Document*);
virtual ~SVGUseElement();
SVGElementInstance* instanceRoot() const;
SVGElementInstance* animatedInstanceRoot() const;
virtual bool isValid() const { return SVGTests::isValid(); }
virtual void insertedIntoDocument();
virtual void removedFromDocument();
virtual void buildPendingResource();
virtual void parseMappedAttribute(MappedAttribute*);
virtual void notifyAttributeChange() const;
virtual void attributeChanged(Attribute*, bool preserveDecls = false);
virtual void recalcStyle(StyleChange = NoChange);
virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
virtual void attach();
protected:
virtual const SVGElement* contextElement() const { return this; }
private:
ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)
ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGURIReference, String, Href, href)
ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, X, x)
ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Y, y)
ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Width, width)
ANIMATED_PROPERTY_DECLARATIONS(SVGUseElement, SVGLength, SVGLength, Height, height)
private:
friend class SVGElement;
SVGElementInstance* instanceForShadowTreeElement(Node* element) const;
private:
void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle);
void handleDeepUseReferencing(SVGElement* use, SVGElementInstance* targetInstance, bool& foundCycle);
PassRefPtr<SVGSVGElement> buildShadowTreeForSymbolTag(SVGElement* target, SVGElementInstance* targetInstance);
void alterShadowTreeForSVGTag(SVGElement* target);
void buildShadowTree(SVGElement* target, SVGElementInstance* targetInstance);
#if ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES)
void expandUseElementsInShadowTree(Node* element);
#endif
void attachShadowTree();
void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
RefPtr<SVGElement> m_shadowTreeRootElement;
RefPtr<SVGElementInstance> m_targetElementInstance;
};
}
#endif // ENABLE(SVG)
#endif